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| author | Michael Niedermayer <michael@niedermayer.cc> | 2020-11-10 23:01:12 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2021-01-29 19:36:46 +0100 |
| commit | 8af299acde9601e64740b75430960503615873b4 (patch) | |
| tree | 3b3a85119feaa43a800ef111a44f1794a2278c9d /libavformat/aiffdec.c | |
| parent | c6edbf009063275365362c343fdbd6d24c838e3f (diff) | |
| download | ffmpeg-8af299acde9601e64740b75430960503615873b4.tar.gz | |
avformat/aiffdec: Check size before subtraction in get_aiff_header()
Fixes: Infinite loop
Fixes: 27235/clusterfuzz-testcase-minimized-ffmpeg_dem_AIFF_fuzzer-5761398380167168
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavformat/aiffdec.c')
| -rw-r--r-- | libavformat/aiffdec.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/libavformat/aiffdec.c b/libavformat/aiffdec.c index 15733478e1..4d1c9bbb53 100644 --- a/libavformat/aiffdec.c +++ b/libavformat/aiffdec.c @@ -120,6 +120,8 @@ static int get_aiff_header(AVFormatContext *s, int size, else sample_rate = (val + (1ULL<<(-exp-1))) >> -exp; par->sample_rate = sample_rate; + if (size < 18) + return AVERROR_INVALIDDATA; size -= 18; /* get codec id for AIFF-C */ |